DC source for arc welding with soft-switching current-mode controlled DC-DC converter

Journal article (2006)

Authors

J Dudrik External organisation
P. Bauer Electrical Power Processing
Research Group
Electrical Power Processing
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Published Date

2006

Language

Undefined/Unknown

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Research Group

Electrical Power Processing

Abstract

Design of a soft-switching, current-mode controlled dc-dc converter for arc welding is described in the paper. The arc welder based on switch-mode dc-dc power supply utilises current-mode control for improving working performance of the current source. The switching power losses are decreased to minimum using non dissipative turn-off snubber. The operation and performance of the proposed dc current source was verified on the 3 kW laboratory model of the welder. High efficiency up to 90% is achieved at nominal current of 120A.